Ea. Olsen et al., TRETINOIN EMOLLIENT CREAM FOR PHOTODAMAGED SKIN - RESULTS OF 48-WEEK,MULTICENTER, DOUBLE-BLIND STUDIES, Journal of the American Academy of Dermatology, 37(2), 1997, pp. 217-226
Background: The ability of topical tretinoin to improve certain signs
of skin photodamage has been shown previously. Objective: Our purpose
was to assess the effectiveness of tretinoin emollient cream in mainta
ining or further improving photodamaged skin during extended use. Meth
ods: Photodamaged subjects who completed 24 weeks of once-daily use of
tretinoin emollient cream 0.05% (n = 149) or 0.01% (n = 149) continue
d to use the same strength formulation in a 24-week double-blind exten
sion. Results: Maintenance of improvement or continued reduction in si
gns of photodamage was noted in both investigators' and subjects' eval
uations of the 0.05% and 0.01% preparations; these results were confir
med by skin replica analyses. Cutaneous side effects were less common
during the extension study than during the first 24 weeks of therapy.
Conclusion: Both strengths of tretinoin emollient cream (0.05% and 0.0
1%) appeared safe and effective in the treatment of photodamaged skin
during a 48-week treatment period.